Alright, well, I'm all for motivation. I think you and I define 'motivation' differently. To me, it's far from magic, which is what I'm hearing. And I can completely understand your position and the need to maintain that level as a personal trainer.
If fat loss did not take years for such a severe case, it would be dangerously unhealthy. We can all agree that too much weight loss, too fast is unhealthy and potentially dangerous. On the other hand, taking years to do it is also a huge risk, as the client remains in a severe position for prolonged periods. With that logic, the only other options remaining are surgery or death. Personally, I'd go with surgery.
I'm sure you're a pro at what you do and I've seen your posts, you most certainly know and understand your business. This is beyond what you or I have ever dealt with. So we could both be wrong, and everything we say is opinions only, not facts, because neither of us have the experience. A 500 lb man is not the same as a 700 lb man. Same goes for a 900 lb man, all different challenges, mainly; mobility challenges but also internal conditions and severity. Has it been done? Possibly. Has to be extremely rare and unusual cases. Even then, I don't think they would ever reach a healthy position. This is a very rare case and needs to be treated as such.
There's nothing wrong with getting help at that stage. As you stated, this client is most likely under some sort of medical/nutritional care. That's not working. Or he would not be making an attempt to go to the gym. Surgery to me in general, is about as weak minded as Synthol users who want to grow. However, whether we like it or not... there are those rare cases where surgery is not 'giving up', it's in fact, in the clients best interest. It betters his chances of survival, if you will.
That said, I respect your opinion and more than anything, appreciate your enthusiasm, because I know that your clients will certainly benefit from your guidance. No doubt in my mind. I'll
leave this thread alone for now 